The Stage 1 cams have a bit more lift and duration than the OEM cams, and are milder than the Stage 2 cams.
You would see a bit more power mostly at the upper RPM range.
They should work well with aftermarket full exhaust and airbox.
Reliability should be ok since your bike will still have the OEM hard rev limit and not the higher rev limit of the HRC ECU.
I don't have the exact specs on the Moriwaki cams (lift/duration) since these cams were discontinued and are hard to find.
I have seen photos of the Moriwaki link and it matches the Kyle link, who copied the dimensions from the Moriwaki link.
The HRC link has the same dimensions as the Moriwaki link, but requires an eyelet lower shock mount vs the clevis mount the OEM and aftermarket shocks use.
From what I understand, you'll need to change out the springs, seats, and possibly the retainers to use the cams.
The springs are a different wind that allows the buckets to travel farther down the bore for the extra cam lift without binding. The seats also work with the springs in this as well.
The retainers are there for less reciprocating weight at the higher lifts and also fit the different inner and outer diameters of the inner and outer springs.
The bad news is that these HRC parts (springs, seats, retainers) have been discontinued.
I ordered my set last year just before they discontinued them.
Try contacting Rising Sun Cycle to see if they still have a set of springs, seats, and retainers.
Here are the HRC part numbers and prices from last year.
14750-NL6-000 HRC Double Valve Spring $11.10 ea. (qty 8 req'd)
14775-NL6-000 HRC Valve Spring Seat Outer $24.60 ea. (qty 8 req'd)
14776-NL6-000 HRC Valve Spring Seat Inner $32.70 ea. (qty 8 req'd)
I obtained a special set of titanium retainers so, I didn't price or order the HRC aluminum items.
If you decide not to use the cams, I may be interested in them.
Last edited by SubSailor; 02-09-2011 at 03:17 PM.